Journal of Non-Crystalline Solids ( IF 3.2 ) Pub Date : 2020-07-24 , DOI: 10.1016/j.jnoncrysol.2020.120313 Muhammad Zakir Sheikh , Muhammad Atif , Muhammad Aamir Raza , Tao Suo , Yulong Li , Fenghua Zhou , Uzair Ahmed Dar
Understanding the damage progression in aluminosilicate glass against impact loading is all-important for the design of a transparent structure. The Edge-on impact (EOI) experiments linked to the ultra-high-speed camera on glass plates are completed to visualize and quantify damage propagation. This followed quasi-static compressive and split-tensile, and dynamic compressive experimentation on aluminosilicate samples to examine failure process, strength, and crack initiation. By incorporating the compression and tensile test data, Johnson-Holmquist ceramic (JH-2) model parameters were estimated for aluminosilicate glass. The compression tests simulated for verification of determined JH-2 constants and finally validated by conducting the EOI simulations on glass plates to the spherical and cylindrical-shaped projectile. The simulated results for damage shape, propagation, and spall effect were collated with experiments and JH-2 model for aluminosilicate glass well predicted the impact/damage response. The high-speed visuals, calculated results, and scan electron microscopic imageries confirmed that damage progression is dependent on the impactor shape.
中文翻译:
硅铝酸盐玻璃的损伤传播和动态材料性能
了解铝硅酸盐玻璃对冲击载荷的破坏过程对于透明结构的设计至关重要。与玻璃板上的超高速相机关联的边缘撞击(EOI)实验已完成,以可视化并量化损伤的传播。随后,对铝硅酸盐样品进行了准静态压缩拉伸和裂变拉伸以及动态压缩实验,以检查破坏过程,强度和裂纹萌生。通过合并压缩和拉伸测试数据,估计了铝硅酸盐玻璃的Johnson-Holmquist陶瓷(JH-2)模型参数。模拟压缩测试以验证确定的JH-2常数,最后通过在玻璃板上对球形和圆柱形弹丸进行EOI模拟来进行验证。将损伤形状,传播和剥落效应的模拟结果与实验进行了比较,铝硅酸盐玻璃的JH-2模型很好地预测了冲击/损伤响应。高速视觉效果,计算结果和扫描电子显微镜图像证实,损伤的进展取决于撞击器的形状。